public static Tensor <float> Conv(string name, Tensor <float> x, Array <float> kernel, Block pooling = null, bool bias = true)
{
var einstein = "i,io->o";
if (x.NDim == 3)
{
einstein = "bi,io->bo";
}
var W = Op.Shared(kernel, name);
W.Tag(KERNEL); W.Tag(name);
var y = Op.ConvolveCustom(x, W, einstein);
if (pooling != null)
{
y = pooling(y);
}
if (bias)
{
var b_shape = new int[y.NDim];
for (int i = 0; i < y.NDim - 1; ++i)
{
b_shape[i] = 1;
}
b_shape[y.NDim - 1] = kernel.Shape[kernel.NDim - 1];
var b = Op.Shared(NN.Zeros(b_shape), name + "_bias");
//var b = Op.Shared(NN.Random.Uniform(-s, s, b_shape), name + "_bias");
b.Tag(BIAS); b.Tag(name);
y += b;
}
y.Name = name + "_out";
return(y);
}